Lewis xl  kedfield



(No Model.)

L, H. REDPIELD.

HOSE CLAMP.

Patented June 21, 1892.

INVENTOR: OZ #fiyazg 4 ATTORNEYS.

W|TNESSESI.

UNITED STATES PATENT OFFICE.

LEWVIS H. REDFIELD, OF SYRACUSE, NEIV YORK, ASSIGNOR OF ONE-HALF TO J.RICHARD CLANCY, OF SAME PLACE.

HOSE-CLAMP.

SPECIFICATION forming part of Letters Patent No. 477,227, dated June 21,1892.

u Application filed September 24;, 1891. Serial No. 406,726. (No model.)

To to whom it may concern.-

Beit known that I, LEWIs II. REDFIELD, of Syracuse, in the county ofOnondaga, in the State of New York, have invented new and usefulImprovements in Hose Clamps, of which the following, taken in connectionwith the accompanying drawings, is a full, clear, and exact description.

' This invention relates to the class of hosecouplings in which a bandembraces the end of the hose and terminates with perforated ears or lugsfor the reception of the bolt by which said band is tightened on thehose.

My present invention consists in a novel construction of a clamp-bandformed in one piece, stamped out of sheet metal and bent and folded nearits ends so as to form ears or lugs of double thicknesses of metal, andthus amply reinforced, the extremities of the band being of the form oflips lapping onto the inner side of the adjacent opposite ring portion,all as hereinafter more fully described, and specifically set forth inthe claim.

In the annexed drawings, Figure 1 is a perspective view of a hose-clampembodying my invention. Fig. 2 is a transverse section of a hose with myimproved clamp applied thereto. Fig. 3 is a side view of said clampdetached; and Fig. 4. is a plan View, on a reduced scale, of the blankfrom which my improved clamp is formed.

Similar letters of reference indicate corre sponding parts.

a denotes the band which embraces the hose h, as represented in Fig. 2of the drawings. Z) I) are the perforated ears or lugs on the ends ofthe said band.

0 represents the bolt by which the clamp is tightened on the hose, andcl (1 d the lips which extend from the ends of the band and lap onto theinterior thereof to guard against the buckling up of the hose in theoperation of tightening the clamp. The said band a, with its ears orlugs b b and lips (Z (Z, I form from a single blank of the shape shownin Fig. 4 of the drawings, which blank I stamp out of suitable sheetmetal by means of a press provided with a die or dies of the requisiteshape. In the central or main portion of the said blank I preferably cutlongitudinal parallel slots 6 e to form bars it t, by which to obtain afirmer hold on the hose to which the band is to be applied. Said centralor main portion of the blank I bend into the shape of a ring or annularband a to embrace the end of the hose h, as shown in Fig. 2, and thenbend each end of the blank first radially outward and then inward, so asto fold upon the outward bent portion at the side, facing the oppositeend portion, to produce the twoply ears or lugs Z) Z), and finallyterminate one end of the blank with the central lip d, which laps ontothe interior of the opposite and adjacent end portion of the band a,while the other end of the blank terminates with the lips d (1' at ornear the edges of the blank, which latter lips lap onto the interior ofthe opposite adjacent end portion of the band a. The blank is formedwith two perforations Min each end, and each end portion is foldeddouble, as before described, and on a line midway between theperforations, and thus the latter are made to coincide, said perforateddoubled portions constituting the ears or lugs "b I), through whichpasses the clamping-bolt c.

A hose-clamp thus constructed can be rapidly and cheaply manufacturedand possesses superior strength and durability and is most etlicient inits operation, and aside from this it is very easilyand convenientlyapplied, inasmuch as it is not incumbercd with loose members which areinconvenient to handle, fit, and assemble.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is-

As an improved article of manufacture, a hose-clamp consisting of a bandof sheet metal provided with coinciding perforations at each end andterminating with a tongue extending from the center of its width at oneend and with tongues extending from the opposite end at opposite sidesof the center of its width, said band being bent annularshaped andthence outward and folded inward on lines central between theperforations, and the tongues of each end being bent to lie on the innerside of the opposite end of the main portion of the band, substantiallyas described and shown.

In testimony whereof I have hereunto signed my name this 18th day ofSeptember, 1891.

LEVIS H. REDFIELD. [L. s.]

\Vituesses:

H. M. SEAMANS, O. L. BENDIXON.

